Improvement in machinery for grinding and pulverizing grain, ores



C. LUGO?.

MACHINERYFOR Mmmm` AND PULVERIZING GRA1N,0RES, m. No.173A11. v Patented Feb.15,1e7e.

UNITED STATES PATENT OEEIcEa j CHARLES LUCOP,OF SOUTHWARK, ASSIGNOR OF ONE-HALF HIS RIGHT TO NATHAN vGOLD K IMBERLEY, OF LONDON, ENGLAND.

IMPROVEMENT'IN MACHINERY FOR GRINDING AND PULVERIZING GRAIN, ORES. Src.

Specification forming part of Letters Patent No, 173,411, dated February 15,v 1876 application filed November 11, 1875 Y To all whom it may concern:

Be it known that I, CHARLES LUOOP, of Southwark, in the county of Surrey, England, have invented certain new and usef'ul Improvements in Machinery for Grinding and Pulverizing Seed, Grain, Ores, and other substances, of which thefollowing is a specification:

This invention relates to new or improved machinery for grinding, crushing, pulverizing, and reducing to powder various vegetable,

' mineral, or animal substances, such as seed,

grain, ores, lime, cement, black-lead, plaster, colors, bartya, sulphur, glass, or otherv substances, which, according to my invention, is accomplished by means of centrifugal force.

Machinery arranged and combined in accordance with my invention may be constructed as shown in the accompanying drawings, in which- Y I Y Figure 1l is a transverse section. Eig. 2 is a front elevation, partly in longitudinal section. v 51' The machine is constructed with a circular metal or other casin g, a a,of a flat, elliptical, or other form; or it may be of along fiat-sided,

oblong, or other suitable forni. This easing a' I a is Xed rmly on a bed-plate, c c', or other secure foundation. shaft, b, passes through. the center, and has keyed upon it arms c c, to

A act upon aball, sphere, or roller, of metal or other material, or a series of them, and when Vthe shaft b revolves at, say, three hundred revolutions, more or less, per minute, the balls d d or other bodies are carriedronnd by the arms c c, and bythe centrifugal action they dy oft' from the centers and run on the interiorl periphery of the casing a, and thus, by centrifugal force, crush, grind, and pulverize the substances they come in contact with. The sides of the casin g may be perforated or formed as open wire sieves e e of the required iineness stretched over openings, and regulated by suitable means. A series of brushes, ff, attached to, a-nd revolving with, the centralvshaft b, may be arranged to pass over the inner surface of the sieves e e, and thereby brush the material under treatment through as it is pulverized.

It' desired, rot-ary motion may be given .to the casin g in an opposite direction to the arms. For some purposes, when it is desired to reduce the substance treated to a granular state only, I prevent the balls, spheres, or rollers d d from acting upon the inner circumference of the casing a by inserting bearings or packing within the outer ends of the slots c c of the arms c c, in order to regulate the distance to*` l CHARLES LUooP.

Witnesses:

N. Gr. KIMBERLEY, GYRUs DoNNrsoN,

Notary Public, 71 Gornhll, London. 

